I have a fresh install of Ubuntu 16.04 and have come across an odd problem (two, really, but I don't think they're related). I'm using lightdm. After logging in, X starts as normal, but when I try to log out (using a menu item), rather than bringing me back to lightdm, X simply restarts as the same user.
If I log into a virtual console and start X from the command line, "logging out" kills X as expected.
Any ideas? Thanks. Let me know what diagnostics would help.
